نتایج جستجو برای: need for independence
تعداد نتایج: 10420041 فیلتر نتایج به سال:
The thesis that probabilities of conditionals are conditional probabilities has putatively been refuted many times by so-called ‘triviality results’, although it has also enjoyed a number of resurrections. In this paper I assault it yet again with a new such result. I begin by motivating the thesis and discussing some of the philosophical ramifications of its fluctuating fortunes. I will canvas...
Extreme ultraviolet spectroscopic observations of one coronal mass ejection event are used to examine the onset phase of the eruption. We find significant dimming of million K plasmas in the low corona under the ascending CME, the activation of an adjacent prominence and 2 million K ‘hot spots’ which may be associated with the CME footpoints. In particular, we show that the dimming is due to a ...
Wireless sensor networks offer the potential to significantly improve the performance of pursuers in pursuit-evasion games. In this paper, we study several sensor network systems, their interaction with the pursuers, and the effect on pursuer performance. We propose a general framework to solve the pursuit-evasion problem and present new centralized as well as distributed methods. Specifically,...
In analogy to 4-b-substituted benzoyl)-N-methylpyridinium cations (1 -X's), the title species (2-X's, -X = -0CH3, -CH3, -H, -Br, -COCH3, -N02) undergo two reversible, well-separated (E1122650 mV) one-electron reductions. The effect of substitution on the reduction potentials of 2-X's is much weaker than the effect of the same substituents on 1-X's: the Hammett p-values are 0.80 and 0.93 for the...
Highly prized is the truly productive crime prevention strategy, one that lightens the load on an overworked criminal justice system and, more importantly, reduces the number of victims. But to prevent crimes—especially in hot spots (high-crime areas)—police must determine where and when crimes are likely to occur. Drawing primarily on data collected in the United Kingdom, this Research in Acti...
The polarizability and hyperpolarizabilities of nitrophenols as model compounds for studying nonlinear optics have been investigated at the Hartree-Fock level of approximation by means of the Dalgarno Uncoupled Hartree-Fock (DUHF) or Sum Over Orbitals (SOO) method. The additive character and the charge transfer effects in 01, p, and y have been analyzed in terms of the u and n-molecular orbital...
The reduction and reductive addition (formal hydroamination) of functionalised nitroarenes is reported using a simple and bench-stable iron(III) catalyst and silane. The reduction is chemoselective for nitro groups over an array of reactive functionalities (ketone, ester, amide, nitrile, sulfonyl and aryl halide). The high activity of this earth-abundant metal catalyst also facilitates a follow...
In this study, the structures of the complexes which occured by Pd(II) and trichloroethylen derivatives were investigated and complexations were explained qualitatively. For this reason, Pd(II) and trichloroethylen derivatives(1,2-dichloro-1,1,4-tris-(4-chloro phenyltio)-1,3butadien and 2 nitro 3,4 dichloro 1,1,4 tris -(4-methylphenylthio) -1,3butadien) were refluxed at 80 C in absolute alcohol...
When Louisa May Alcott penned A Long Fatal Love Chase the first stalking novel ever written in 1866, perhaps her imagination was piqued by the thought that the study of stalking would become a scientific endeavour filled with the passion of pursuit 150 years later. It has become just that. Since the behaviour of stalking was criminalized in California in 1990, a brief interlude of 15 years has ...
1. Department of Sport Physiology, Faculty of Physical Education and Sport Sciences, University of Tarbiat Modarres, Tehran, Iran 2. Department of Sport Physiology, Faculty of Physical Education and Sport Sciences, University of Mazandaran, Babolsar, Iran 3. Cellular and Molecular Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran,...
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